Beginning in the 1950s and 1960s, those sectarian differences began contracting and collapsing and what emerged in their place was differences in religiosity so that today what you see is a very distinct fertility rate for people who never attend church services, another very distinct fertility rate from people who go twice a year, another fertility rate right around replacement, by the way, for people who go once a month, and then a very healthy fertility—right around 2.35—for people who go to services once a week. … All that matters is that you show up, and I find that to be a fantastically evocative piece of data because I think what it’s saying is it’s saying a lot about what it takes to get people over the hump and committing to having families. …. I think it’s something more basic about the very theistic view of the world, which is these are people who view the present differently than everybody else. People who don’t go to church for them the present is all inclusive, it is everything. The present is the entirety of their worldview. The people who go to church once a week, what I would argue is that the present actually has a much diminished place in their worldview. The present is important, the present is consequential, but it is only viewed in light of obligations to pass in hopes of a future.